Triphenylphosphine-3,3′,3′′-trisulfonic acid… 63995-70-0

About Triphenylphosphine-3,3′,3′′-trisulfonic acid trisodium salt, ≥95%

Triphenylphosphine-3,3′,3′′-trisulfonic acid trisodium salt is an organic building block carrying the CAS registry number 63995-70-0 at a purity of ≥95%. Its molecular formula is C18H12Na3O9PS3 and its molecular weight is 568.4 g/mol. Systematically, it is named trisodium, 3-bis(3-sulfonatophenyl)phosphanylbenzenesulfonate. Common synonyms include Tris(3-sulfophenyl)phosphine trisodium salt and tris(3-sulfonatophenyl)phosphine sodium salt.

It is supplied as a white to off-white powder. Store in a tightly closed container in a cool, dry and well-ventilated place. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span organic synthesis and API synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 1 g, 5 g, 25 g and 1 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Triphenylphosphine-3,3′,3′′-trisulfonic acid trisodium salt, ≥95%
Catalogue No.	VQ-011629
CAS Number	63995-70-0
IUPAC name	trisodium;3-bis(3-sulfonatophenyl)phosphanylbenzenesulfonate
Molecular formula	C₁₈H₁₂Na₃O₉PS₃
Molecular weight	568.4 g/mol
Exact mass	567.9074
Purity / assay	≥95%
HSN code	84451110
InChIKey	MYAJTCUQMQREFZ-UHFFFAOYSA-K
SMILES	C1=CC(=CC(=C1)S(=O)(=O)[O-])P(C2=CC(=CC=C2)S(=O)(=O)[O-])C3=CC(=CC=C3)S(=O)(=O)[O-].[Na+].[Na+].[Na+]
PubChem CID	6099338

Physical properties
Physical form	Powder
Appearance	White to off-white powder
H-bond donors / acceptors	0 / 9
TPSA	197 Å²
Synonyms	Tris(3-sulfophenyl)phosphine trisodium salt, 3,3′,3″-Phosphinidynetris(benzenesulfonic acid) trisodium salt, Trisodium 3,3',3''-phosphinetriyltris(benzene-1-sulphonate), Benzenesulfonic acid, 3,3',3''-phosphinidynetris-, sodium salt (1:3), Sodium 3,3',3''-phosphinetriyltribenzenesulfonate, Triphenylphosphine-3,3',3''-trisulfonic acid trisodium salt, tris-(3-Sulfornatophenyl)-phosphine 4-hydrate sodium salt, tris(3-sulfonatophenyl)phosphine sodium salt, Tris(3-sulfophenyl)phosphine Trisodium (~85%), Triphenylphosphine-m-trisulfonic acid trisodium salt, trisodium 3-[bis(3-sulfonatophenyl)phosphino]benzenesulfonate, C18H12Na3O9PS3

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Triphenylphosphine-3,3′,3′′-trisulfonic acid trisodium salt, ≥95%?

The CAS Registry Number of Triphenylphosphine-3,3′,3′′-trisulfonic acid trisodium salt, ≥95% is 63995-70-0. It is also known as Tris(3-sulfophenyl)phosphine trisodium salt, 3,3′,3″-Phosphinidynetris(benzenesulfonic acid) trisodium salt, Trisodium 3,3',3''-phosphinetriyltris(benzene-1-sulphonate).

What is the molecular formula and molecular weight of Triphenylphosphine-3,3′,3′′-trisulfonic acid trisodium salt, ≥95%?

Triphenylphosphine-3,3′,3′′-trisulfonic acid trisodium salt, ≥95% has the molecular formula C18H12Na3O9PS3 and a molecular weight of 568.4 g/mol.

Which grade and pack sizes of Triphenylphosphine-3,3′,3′′-trisulfonic acid trisodium salt, ≥95% can I order?

We supply Triphenylphosphine-3,3′,3′′-trisulfonic acid trisodium salt, ≥95% in (≥95%) grade, in 1 g, 5 g, 25 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Triphenylphosphine-3,3′,3′′-trisulfonic acid trisodium salt, ≥95%?

Yes. Every lot of Triphenylphosphine-3,3′,3′′-trisulfonic acid trisodium salt, ≥95% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Triphenylphosphine-3,3′,3′′-trisulfonic acid trisodium salt, ≥95% be shipped internationally?

Yes. Triphenylphosphine-3,3′,3′′-trisulfonic acid trisodium salt, ≥95% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.